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Last Updated: February 25, 2025
On average, 55% of the energy used in American homes is for heating and cooling, according to the Department of Energy. It's important that the temperature control systems in your Antioch home are functioning optimally, so that you don't spend more than necessary.
We've put together this guide to Antioch's top HVAC companies to help you hire the best person for your job and get your system into top shape.

Our Rating
User Rating
Prompt service delivery
Clear pricing policy
Free quotes
Informative resources
Reliable customer support
Services Offered

Our Rating
User Rating
Informative resources
Free quotes
Prompt service delivery
Reliable customer support
Clear pricing policy
Services Offered

Our Rating
User Rating
Clear pricing policy
Reliable customer support
Prompt service delivery
Informative resources
Free quotes
Services Offered

Our Rating
User Rating
Informative resources
Clear pricing policy
Free quotes
Reliable customer support
Services Offered

Our Rating
User Rating
Clear pricing policy
Informative resources
Free quotes
Reliable customer support
Prompt service delivery
Services Offered

Our Rating
User Rating
Clear pricing policy
Reliable customer support
Services Offered

Our Rating
User Rating
Free quotes
Informative resources
Prompt service delivery
Reliable customer support
Clear pricing policy
Services Offered

Our Rating
User Rating
Reliable customer support
Prompt service delivery
Clear pricing policy
Informative resources
Free quotes
Services Offered

Our Rating
User Rating
Informative resources
Clear pricing policy
Reliable customer support
Free quotes
Services Offered

Our Rating
User Rating
Reliable customer support
Informative resources
Free quotes
Clear pricing policy
Services Offered
Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:
If your home's HVAC system is malfunctioning or getting old, you might need an HVAC contractor for repairs or replacement. Look for these common signs that your system requires expert attention:
Arrange an inspection if you notice any of these problems. A local technician can inspect your system, identify problems, and determine whether you need to fix or replace your HVAC.
Your HVAC installation or maintenance cost varies depending on the type of unit. Common HVAC unit types include the following:
HVAC maintenance prices vary based on the specific services needed. HVAC systems can be complicated and potentially require several different services. Costs for typical jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,973-$5,030 | |
| Hybrid Split | $3,998-$7,366 | |
| Heat Pump | $3,096-$31,544 | |
| Packaged Heating and Air | $259-$432 |
Essential HVAC maintenance is important, but can be pricey. Thankfully, homeowners can take steps to reduce wear and tear on their system and lower future maintenance needs.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $65-$173 | |
| Condensor Cleaning | $1,295-$3,886 | |
| Thermostat Repair | $86-$216 | |
| Ductwork Cleaning | $414-$1,036 |
Knowing the indicators of a reliable HVAC company is key for a smooth repair or installation. Established providers with certified technicians can offer assurance your HVAC system will deliver consistent heating and cooling year-round.
Contact at least three HVAC providers for quotes. Describe your issues and schedule an in-person inspection if possible. Compare contractors' diagnoses, suggested repairs, estimated costs, warranties, and timeframes. Avoid providers that pressure you or demand upfront payment.
Choose an HVAC company with skilled technicians who have appropriate licensing and experience. In all states, HVAC contractors have federal requirements from the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, a contractor must pass an exam (the specific exam depends on what kind of equipment they plan to work with). Section 608 certification is required for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." All other licensing requirements are handled by the state.
The state of Illinois doesn't have state-level licensing requirements for contractors. However, there may be local regulations. Be sure to check with your municipal government to verify that your contractor meets all the requirements. You can verify an Illinois business license on the Secretary of State's website. Also look at a company's reviews and complaints on sites such as the Better Business Bureau (BBB), Google Reviews, and Yelp. Pick a company with glowing feedback and stories of satisfied customers.
Make sure you understand the details of any project before it begins. For HVAC repairs, have your provider detail which parts need replacement and why. Confirm that your technician will clean and test the system after the repair to ensure that everything works. When replacing your HVAC, ask the contractor to provide details on the new energy efficiency, model, estimated installation time, brand, and features. Before work begins, make sure you understand the process your provider will use to select the correctly sized system for your home and what the cost will be.
Trustworthy HVAC companies provide warranties for their work. The broader the coverage, the better, so make sure to review warranties between companies. Choose the one that offers the best coverage at a reasonable cost.
Always get estimates for HVAC service in writing before committing to a provider. A comprehensive quote should cover both labor and materials. Make sure you review all terms before signing a contract.
You should have your HVAC system inspected about twice annually. After the inspection, your technician will tell you what services are required. You should also call a technician if you start noticing issues such as leaks, strange noises, or unusual smells. If your system has ductwork, you should have it inspected every few years.
Generally, it's smart to have your HVAC system inspected in the spring and fall, as technicians tend to be less busy at these times. This also helps get your system ready for the summer and winter, when it typically sees the most use.
You can save energy throughout the year by reducing the amount of power your HVAC system uses to maintain your home's temperature. During all seasons, keep your thermostat as close to the outside temperature as is comfortable, and avoid making drastic changes — adjust it only a few degrees at a time. You may also consider purchasing a smart thermostat.
It takes around one to three days to have an HVAC system installed or replaced. If you need just an air conditioning unit or a furnace, this may take between half a day and two days. This timeline can be affected by the size of your house, how easily accessible your system is, and any issues your technician discovers.
Typically, HVAC financing is provided by a third-party lender. If your HVAC company doesn't offer these options, you might consider taking out a loan on your own. Be sure to speak with your HVAC company and a financial advisor to determine what options are available and appropriate for your situation.
There are a number of ways you can make your HVAC system more energy-efficient:
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